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Collier County Growth Management

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Collier County Growth Management

The Collier Interactive Growth Model has become an essential planning tool for conducting long-range analysis and measuring project impacts. Over 10 departments at Collier County use CIGM data.

Since 2007, The Collier County Board of Commissioners has used the Interactive Growth Model to represent the needs of future residents and to plan and manage growth. In 2017, Metro Forecasting Models performed a comprehensive update of the model to represent the impacts of proposed developments county wide. The model used simulation models and historic data to accurately forecast future growth down to the Traffic Analysis Zone (TAZ).

Since then, the model has been useful for long-range planning in various other departments. The Growth Management Department used the model to test the outcome of various housing densities and to determine the ideal community size for internal capture. The Collier County Metropolitan Planning Organization used the forecast for long-range transportation planning. The Utilities Department used the IGM Utility Model to forecast demand for potable water and wastewater treatment based on actual proposed development. Collier’s fire departments used the forecast to gauge the location and timing of new fire station locations.

The Collier Interactive Growth Model was praised in Planning Magazine for its innovative approach to modeling Collier County’s complex anti-sprawl land use strategies.


“Insight has been gained for future collocation opportunities of various departments and special districts to serve the existing and future residents of Collier County.” – William L. McDaniel, Collier County Commissioner, District 5